Type Material

 

            Holotype: “Male holotype from Las Vegas, New Mexico, 1931, in the American Museum of Natural History. Female allotype and female paratype, from Las Vegas, Nevada, February to June, 1945 (Donald J. Zinn), also in the American Museum of Natural History” (Muma, 1951, p. 67).

 

            Measurements: Males: Total Length, 17.0 to 21.0 mm. Chelicerae, 4.5-5.8 mm length; 2.4-2.7 mm width. Propeltidium, 1.8-2.7 mm length; 3.0-4.6 mm width. Palpi, 16.0-19.0 mm. 1^st Legs, 13.0-16.0 mm. 4^th Legs, 21.0-26.0 mm. Holotype, larger measurements.

Females: Total length, 24.0 to 29.0 mm. Chelicerae, 5.6-6.6 mm length; 2.5-2.9 mm width. Propeltidium, 2.8-3.1 mm length, 4.3-4.5 mm width. Palpi, 17.0-18.0 mm. 1^st Legs, 14.0-16.0 mm. 4^th Legs, 24.0-26.0 mm. Allotype, larger measurements.

 

            Palpal Description: “a narrow basal scopula of 10 to 40 very weak papillae on the metatarsus of the palpus” (Muma, 1951, p. 67).

 

            Ctenidia Description: “six ctenidia on the first postspiracular abdominal sternite. Some specimens have a spurious seventh ctenidium” (Muma, 1951, p. 67). 

            

            Operculum Description: “Structure similar to that of palpisetulosus Fichter and nearly identical with that of mormonus (Roewer). Specific differences are found in the opercula of the genital segment of the abdomen (fig. 91)” (Muma, 1951, p. 67). 

            

            Chelicerae Description: “Structure similar to that of palpisetulosus. This species differs by having the movable finger with the intermediate teeth reduced to denticules and an indistinct mesal tooth, the process of the fixed finger in lateral view a distinct rounded lobe, the fondal notch as wide as deep but not so wide as base of fixed finger” (Muma, 1951, p. 67).

 

Diagnosis:

 

Other Information: